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authorRoy Marples <roy@marples.name>2008-03-28 10:46:12 +0000
committerRoy Marples <roy@marples.name>2008-03-28 10:46:12 +0000
commitee4e861796ad9b19acb45c576ed181ce2fdfebf5 (patch)
tree425c9a68f127bce193717055d99be03a1380516c /src/librc/rc.h
parent11e33e81c855395cbd931e99f7452ed6b3fef357 (diff)
Put some dir locations in rc.h so that 3rd party apps can become awware of them.
Diffstat (limited to 'src/librc/rc.h')
-rw-r--r--src/librc/rc.h440
1 files changed, 0 insertions, 440 deletions
diff --git a/src/librc/rc.h b/src/librc/rc.h
deleted file mode 100644
index 04cdba4d..00000000
--- a/src/librc/rc.h
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- * Copyright 2007-2008 Roy Marples <roy@marples.name>
- * All rights reserved
-
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef __RC_H__
-#define __RC_H__
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <stdbool.h>
-#include <stdio.h>
-
-/* A doubly linked list using queue(3) for ease of use */
-typedef struct rc_string {
- char *value;
- TAILQ_ENTRY(rc_string) entries;
-} RC_STRING;
-typedef TAILQ_HEAD(rc_stringlist, rc_string) RC_STRINGLIST;
-
-/*! @name Reserved runlevel names */
-#define RC_LEVEL_SYSINIT "sysinit"
-#define RC_LEVEL_SINGLE "single"
-#define RC_LEVEL_SHUTDOWN "shutdown"
-#define RC_LEVEL_REBOOT "reboot"
-
-/*! Return the current runlevel.
- * @return the current runlevel */
-char *rc_runlevel_get(void);
-
-/*! Checks if the runlevel exists or not
- * @param runlevel to check
- * @return true if the runlevel exists, otherwise false */
-bool rc_runlevel_exists(const char *);
-
-/*! Return a NULL terminated list of runlevels
- * @return a NULL terminated list of runlevels */
-RC_STRINGLIST *rc_runlevel_list(void);
-
-/*! Set the runlevel.
- * This just changes the stored runlevel and does not start or stop any
- * services.
- * @param runlevel to store */
-bool rc_runlevel_set(const char *);
-
-/*! Is the runlevel starting?
- * @return true if yes, otherwise false */
-bool rc_runlevel_starting(void);
-
-/*! Is the runlevel stopping?
- * @return true if yes, otherwise false */
-bool rc_runlevel_stopping(void);
-
-/*! @name RC
- * A service can be given as a full path or just its name.
- * If its just a name then we try to resolve the service to a full path.
- * This should allow the use if local init.d directories in the future. */
-
-/*! @brief States a service can be in */
-typedef enum
-{
- /* These are actual states
- * The service has to be in one only at all times */
- RC_SERVICE_STOPPED = 0x0001,
- RC_SERVICE_STARTED = 0x0002,
- RC_SERVICE_STOPPING = 0x0004,
- RC_SERVICE_STARTING = 0x0008,
- RC_SERVICE_INACTIVE = 0x0010,
-
- /* Service may or may not have been coldplugged */
- RC_SERVICE_COLDPLUGGED = 0x0100,
-
- /* Optional states service could also be in */
- RC_SERVICE_FAILED = 0x0200,
- RC_SERVICE_SCHEDULED = 0x0400,
- RC_SERVICE_WASINACTIVE = 0x0800
-} RC_SERVICE;
-
-/*! Add the service to the runlevel
- * @param runlevel to add to
- * @param service to add
- * @return true if successful, otherwise false */
-bool rc_service_add(const char *, const char *);
-
-/*! Remove the service from the runlevel
- * @param runlevel to remove from
- * @param service to remove
- * @return true if sucessful, otherwise false */
-bool rc_service_delete(const char *, const char *);
-
-/*! Save the arguments to find a running daemon
- * @param service to save arguments for
- * @param exec that we started
- * @param name of the process (optional)
- * @param pidfile of the process (optional)
- * @param started if true, add the arguments otherwise remove existing matching arguments */
-bool rc_service_daemon_set(const char *, const char *const *, const char *, const char *,
- bool);
-
-/*! Returns a description of what the service and/or option does.
- * @param service to check
- * @param option to check (if NULL, service description)
- * @return a newly allocated pointer to the description */
-char *rc_service_description(const char *, const char *);
-
-/*! Checks if a service exists or not.
- * @param service to check
- * @return true if service exists, otherwise false */
-bool rc_service_exists(const char *);
-
-/*! Checks if a service is in a runlevel
- * @param service to check
- * @param runlevel it should be in
- * @return true if service is in the runlevel, otherwise false */
-bool rc_service_in_runlevel(const char *, const char *);
-
-/*! Marks the service state
- * @param service to mark
- * @param state service should be in
- * @return true if service state change was successful, otherwise false */
-bool rc_service_mark(const char *, RC_SERVICE);
-
-/*! Lists the extra commands a service has
- * @param service to load the commands from
- * @return NULL terminated string list of commands */
-RC_STRINGLIST *rc_service_extra_commands(const char *);
-
-/*! Resolves a service name to its full path.
- * @param service to check
- * @return pointer to full path of service */
-char *rc_service_resolve(const char *);
-
-/*! Schedule a service to be started when another service starts
- * @param service that starts the scheduled service when started
- * @param service_to_start service that will be started */
-bool rc_service_schedule_start(const char *, const char *);
-
-/*! Return a NULL terminated list of services that are scheduled to start
- * when the given service has started
- * @param service to check
- * @return NULL terminated list of services scheduled to start */
-RC_STRINGLIST *rc_services_scheduled_by(const char *);
-
-/*! Clear the list of services scheduled to be started by this service
- * @param service to clear
- * @return true if no errors, otherwise false */
-bool rc_service_schedule_clear(const char *);
-
-/*! Checks if a service in in a state
- * @param service to check
- * @return state of the service */
-RC_SERVICE rc_service_state(const char *);
-
-/*! Check if the service started the daemon
- * @param service to check
- * @param exec to check
- * @param indx of the daemon (optional - 1st daemon, 2nd daemon, etc)
- * @return true if started by this service, otherwise false */
-bool rc_service_started_daemon(const char *, const char *const *, int);
-
-/*! Return a saved value for a service
- * @param service to check
- * @param option to load
- * @return saved value */
-char *rc_service_value_get(const char *, const char *);
-
-/*! Save a persistent value for a service
- * @param service to save for
- * @param option to save
- * @param value of the option
- * @return true if saved, otherwise false */
-bool rc_service_value_set(const char *, const char *, const char *);
-
-/*! List the services in a runlevel
- * @param runlevel to list
- * @return NULL terminated list of services */
-RC_STRINGLIST *rc_services_in_runlevel(const char *);
-
-/*! List the services in a state
- * @param state to list
- * @return NULL terminated list of services */
-RC_STRINGLIST *rc_services_in_state(RC_SERVICE);
-
-/*! List the services shceduled to start when this one does
- * @param service to check
- * @return NULL terminated list of services */
-RC_STRINGLIST *rc_services_scheduled(const char *);
-
-/*! Checks that all daemons started with start-stop-daemon by the service
- * are still running.
- * @param service to check
- * @return true if all daemons started are still running, otherwise false */
-bool rc_service_daemons_crashed(const char *);
-
-/*! @name System types
- * OpenRC can support some special sub system types, normally virtualization.
- * Some services cannot work in these systems, or we do something else. */
-#define RC_SYS_JAIL "JAIL"
-#define RC_SYS_OPENVZ "OPENVZ"
-#define RC_SYS_PREFIX "PREFIX"
-#define RC_SYS_UML "UML"
-#define RC_SYS_VSERVER "VSERVER"
-#define RC_SYS_XEN0 "XEN0"
-#define RC_SYS_XENU "XENU"
-const char *rc_sys(void);
-
-/*! @name Dependency options
- * These options can change the services found by the rc_get_depinfo and
- * rc_get_depends functions. */
-/*! Trace provided services */
-#define RC_DEP_TRACE 0x01
-/*! Only use services added to runlevels */
-#define RC_DEP_STRICT 0x02
-/*! Runlevel is starting */
-#define RC_DEP_START 0x04
-/*! Runlevel is stopping */
-#define RC_DEP_STOP 0x08
-
-/*! @name Dependencies
- * We analyse each init script and cache the resultant dependency tree.
- * This tree can be accessed using the below functions. */
-
-#ifdef _IN_LIBRC
-/*! @name Dependency structures
- * private to librc */
-
-/*! Singly linked list of dependency types that list the services the
- * type is for */
-typedef struct rc_deptype
-{
- /*! ineed, iuse, iafter, etc */
- char *type;
- /*! list of services */
- RC_STRINGLIST *services;
- /*! list of types */
- STAILQ_ENTRY(rc_deptype) entries;
-} RC_DEPTYPE;
-
-/*! Singly linked list of services and their dependencies */
-typedef struct rc_depinfo
-{
- /*! Name of service */
- char *service;
- /*! Dependencies */
- STAILQ_HEAD(, rc_deptype) depends;
- /*! List of entries */
- STAILQ_ENTRY(rc_depinfo) entries;
-} RC_DEPINFO;
-
-typedef STAILQ_HEAD(,rc_depinfo) RC_DEPTREE;
-#else
-/* Handles to internal structures */
-typedef void *RC_DEPTREE;
-#endif
-
-/*! Check to see if source is newer than target.
- * If target is a directory then we traverse it and it's children.
-* @return true if source is newer than target, otherwise false */
-bool rc_newer_than(const char *, const char *);
-
-/*! Update the cached dependency tree if it's older than any init script,
- * its configuration file or an external configuration file the init script
- * has specified.
- * @return true if successful, otherwise false */
-bool rc_deptree_update(void);
-
-/*! Check if the cached dependency tree is older than any init script,
- * its configuration file or an external configuration file the init script
- * has specified.
- * @return true if it needs updating, otherwise false */
-bool rc_deptree_update_needed(void);
-
-/*! Load the cached dependency tree and return a pointer to it.
- * This pointer should be freed with rc_deptree_free when done.
- * @return pointer to the dependency tree */
-RC_DEPTREE *rc_deptree_load(void);
-
-/*! List the depend for the type of service
- * @param deptree to search
- * @param type to use (keywords, etc)
- * @param service to check
- * @return NULL terminated list of services in order */
-RC_STRINGLIST *rc_deptree_depend(const RC_DEPTREE *, const char *, const char *);
-
-/*! List all the services in order that the given services have
- * for the given types and options.
- * @param deptree to search
- * @param types to use (ineed, iuse, etc)
- * @param services to check
- * @param options to pass
- * @return NULL terminated list of services in order */
-RC_STRINGLIST *rc_deptree_depends(const RC_DEPTREE *, const RC_STRINGLIST *,
- const RC_STRINGLIST *, const char *, int);
-
-/*! List all the services that should be stoppned and then started, in order,
- * for the given runlevel, including sysinit and boot services where
- * approriate.
- * @param deptree to search
- * @param runlevel to change into
- * @param options to pass
- * @return NULL terminated list of services in order */
-RC_STRINGLIST *rc_deptree_order(const RC_DEPTREE *, const char *, int);
-
-/*! Free a deptree and its information
- * @param deptree to free */
-void rc_deptree_free(RC_DEPTREE *);
-
-/*! @name Plugins
- * For each plugin loaded we will call rc_plugin_hook with the below
- * enum and either the runlevel name or service name.
- *
- * Plugins are called when rc does something. This does not indicate an
- * end result and the plugin should use the above functions to query things
- * like service status.
- *
- * The service hooks have extra ones - now and done. This is because after
- * start_in we may start other services before we start the service in
- * question. now shows we really will start the service now and done shows
- * when we have done it as may start scheduled services at this point. */
-/*! Points at which a plugin can hook into RC */
-typedef enum
-{
- RC_HOOK_RUNLEVEL_STOP_IN = 1,
- RC_HOOK_RUNLEVEL_STOP_OUT = 4,
- RC_HOOK_RUNLEVEL_START_IN = 5,
- RC_HOOK_RUNLEVEL_START_OUT = 8,
- /*! We send the abort if an init script requests we abort and drop
- * into single user mode if system not fully booted */
- RC_HOOK_ABORT = 99,
- RC_HOOK_SERVICE_STOP_IN = 101,
- RC_HOOK_SERVICE_STOP_NOW = 102,
- RC_HOOK_SERVICE_STOP_DONE = 103,
- RC_HOOK_SERVICE_STOP_OUT = 104,
- RC_HOOK_SERVICE_START_IN = 105,
- RC_HOOK_SERVICE_START_NOW = 106,
- RC_HOOK_SERVICE_START_DONE = 107,
- RC_HOOK_SERVICE_START_OUT = 108
-} RC_HOOK;
-
-/*! Plugin entry point
- * @param hook point
- * @param name of runlevel or service
- * @return 0 for success otherwise -1 */
-int rc_plugin_hook(RC_HOOK, const char *);
-
-/*! Plugins should write FOO=BAR to this fd to set any environment
- * variables they wish. Variables should be separated by NULLs. */
-extern FILE *rc_environ_fd;
-
-
-/*! Return a NULL terminated list of non comment lines from a file. */
-RC_STRINGLIST *rc_config_list(const char *);
-
-/*! Return a NULL terminated list of key=value lines from a file. */
-RC_STRINGLIST *rc_config_load(const char *);
-
-/*! Return the value of the entry from a key=value list. */
-char *rc_config_value(RC_STRINGLIST *, const char *);
-
-/*! Check if a variable is a boolean and return it's value.
- * If variable is not a boolean then we set errno to be ENOENT when it does
- * not exist or EINVAL if it's not a boolean.
- * @param variable to check
- * @return true if it matches true, yes or 1, false if otherwise. */
-bool rc_yesno(const char *);
-
-/*! @name String List functions
- * Every string list should be released with a call to rc_stringlist_free. */
-
-/*! Create a new stringlinst
- * @return pointer to new list */
-RC_STRINGLIST *rc_stringlist_new(void);
-
-/*! Duplicate the item, add it to end of the list and return a pointer to it.
- * @param list to add the item too
- * @param item to add.
- * @return pointer to newly added item */
-RC_STRING *rc_stringlist_add(RC_STRINGLIST *, const char *);
-
-/*! If the item does not exist in the list, duplicate it, add it to the
- * list and then return a pointer to it.
- * @param list to add the item too
- * @param item to add.
- * @return pointer to newly added item */
-RC_STRING *rc_stringlist_addu(RC_STRINGLIST *, const char *);
-
-/*! Free the item and remove it from the list. Return 0 on success otherwise -1.
- * @param list to add the item too
- * @param item to add.
- * @return true on success, otherwise false */
-bool rc_stringlist_delete(RC_STRINGLIST *, const char *);
-
-/*! Sort the list according to C locale
- * @param list to sort */
-void rc_stringlist_sort(RC_STRINGLIST **);
-
-/*! Frees each item on the list and the list itself.
- * @param list to free */
-void rc_stringlist_free(RC_STRINGLIST *);
-
-typedef struct rc_pid
-{
- pid_t pid;
- LIST_ENTRY(rc_pid) entries;
-} RC_PID;
-typedef LIST_HEAD(rc_pidlist, rc_pid) RC_PIDLIST;
-
-/*! Find processes based on criteria.
- * All of these are optional.
- * pid overrides anything else.
- * If both exec and cmd are given then we ignore exec.
- * @param exec to check for
- * @param cmd to check for
- * @param uid to check for
- * @param pid to check for
- * @return NULL terminated list of pids */
-RC_PIDLIST *rc_find_pids(const char *const *, const char *, uid_t, pid_t);
-
-#endif